Bip39 generator with balance https://www.4shared.com/s/fAf7kF4dLku Though it makes use of BIP32 system you could still import BIP39 seeds into Electrum wallet. Also aside from BIp32 There exists BIP44 Model which some wallet use for that technology of seeds. For words that have only three letters, there is no 4th letter. https://bookmarkpagerank.com/story20635347/bip39-seed-phrase-word-list-the-greatest-guide-to-bip39-https-dzen-ru-bip39-phrase-com